Refrigerator.



inrrnp @rares- Paritair @when ALEXANDER I3. KOKERNO'I, OF NElV ORLEANS, LOUISIANA.

REFRIGERATOR.

SEE-GEFGAELEUN forming part` of Letters` Patent No. 696,646, dated April 1, 1902. Application nea 00am 7, 1to1. seri-.n raf/7.894. (nominati T0 all wtont it 'litany concern:

15e it known that I, ALEXANDER B. Korten- NoT, a citizen ofthe United States, residing at New Orleans, in the parish of Orleans and State .of Louisiana, have invented a new and useful Refrigerator, of which the following is a specification.

The present invention relates to refrigeraf tors, and particularly to that class set forth in previous patents granted to me, as follows: January 14, 1890, numbered 419,203 and 419,204; August 5, 1890, numbered 433,867, and .Iune 20, 1893, numbered 500,011 and 500,012. In said classa tube is provided which is detachably fitted across the receptacle containingthe material to be cooled, said tube forming a holder for therefrigerant.

In all the constructions set forth in the above-mentioned patents difficulty has been experienced in preventing leakage at the joints between the tube and the receptacle,`

Another disadvantage resides in locating Screw-threads upon the exterior of the tube, which retard the readyinsertion and removal of said tube and, `furthermore, are liable to be stripped or cut during such operations.

The objects of this invention areto overcome bot-h of the above lobjections-first, by providing simple means which will vinsure a liquid-tight joint, and, secondly, locating the necessary screw -threads `within the tube' where they will not interfere with the removal or replacement of the tube and will be protected from injury.,

The preferred embodiment of the invention is fully described in the following specification, and the construction ,thereoffis shown in the drawings which accompanyand form a part thereof. The construction thus set forth and described is, however, open to various changeszand modifications within the scope of the claims hereto appended.

In the drawings, Figure 1 is a Vertical sectional view through a barrel, showing the improved tube in place, therein. Fig. 2 is a perspective View of the tube detached. Fig. 3 is a detail perspective View of the removable head. Figs. 4 and 5 are top plan views showing slightly-modified forms of heads. Fig. 6 is a perspective view of the key employed for removing the head shown in Fig. 3.

Vvarious kinds.

vrig. s.

Similar numerals of reference design ate corresponding parts in all the figures of the drawings.

1n the presentcase the refrigerator attachment is shown in connection with an ordinary beer-barrel; but `it will be readily understood that it may be employed in receptacles of In the drawings the barrel is designated by 4the numeral 10 and has the usual heads 1], provided with centrally-arranged screw threaded openings 12, into which are screwed bushings 13, having annullar flanges 14, that bear against the outer faces of said heads. Extending across the barrel is the refrigerator-tube 15, the opposite ends of which fit snugly within the bushings 13.

By referring particularly to Fig. 2 it will be seen that this tube is preferably cylindrical in form and has on its exterior face, contiguous tlo'one end, an annular flange 16, provided with notches 17 in its peripheral edge. The end of the tube extending beyond this flange basa plurality of openings 1S. The opposite end of the tube ,is provided with internal threads 19 and is arranged to receive a head 20, the preferred form of which is shown in Thishead comprises a cylindrical collar 21, having external threads 22, which coact with the threads 19 `in the end of the tube. Itis furthermore provided on its exterior face with an annular. flange 23, havinga pair ot' oppositely-disposed peripheral notches 24. A wall 25 extends across the collar, and a nipple26 is secured therein, said nipple having a passagefway27ltherethrough,which is closed by a turning plug 2S or other suitable valve. 1t will thus be seen that when the head is screwed within the tube the wall 25 closes the end of said tube and the flange extends over the end edge thereof. For the .purpose of applying this head a key(i1lus trated in Fig. 6) is provided, said key comprising a shank 29, having at one end a handle 30 and at the other a ring" 31, provided with projecting lugs 32, arranged to engage in the notches 24,01? the flange. Byapplying this device and rotating it in one direction or the other the head can be removed or replaced. In Figs. 4 and 5 slightly-'Inodiiied forms of head are shown, the same collar 21 and 'Hange 22 bein g provided, butthe notches IOO 24E being located, respectively, in the outer and inner faces of the collar. It will be obvious thata slightly-modified form of wrench or operating device will be necessary,in which case the lugs 32 will be located either on the inner or outer faces of the ring 3l, as may be necessary. For the purpose of closing the open end of the tube a cap 33 is provided, which iits over the projecting end of said tube and has an annular flange 34, that rests upon the integraLflange 16. Screws 35 or other suitable fasteners detachably connect this cap to the ilange. By this means not only is the open end covered, but the side openings 18 are also closed.

The manner of applying the device will be perfectly evident. The head is first detached, and a packing-gasket 3G is located upon the integral ange 16. The tube is then inserted in the barrel, and another gasket 37 is applied to the end thereof, a small portion of which projects beyond the bushing, after which the head is inserted in the manner described and screwed down tightly. As a result the integral flange of the tube will be drawn snugly against the gasket 36, and a tight joint at both ends of the tube will be insured. Furthermore, because of theinternal threading of the tube said threads will not interfere in the least with the removal or insertion of the tube and will be protected from injury. g

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled in the art Without further description, and it will be understood that various changes in the size, shape, proportion, and minor details of construction may be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a refrigerator of the class described, the combination with a receptacle, of a tube jacent face of the receptacle, and end'walls closing the ends of the tube.

2. In a refrigerator of the class described, the combination with a receptacle, of a tube passing through the receptacle, said tube being provided at one end with an outstanding annular ange that bears against the adjacent outer face of the receptacle, the other end of the tube being internally threaded, a holding-collar screwed into the threaded end of the tube and provided upon its exterior face with an annular Iiange that bears against the adjacent outer face of the receptacle, said collar being provided with a Wall that closes the end of the tube, and a cap detachably fitted over the opposite end of the tube.

8. In a refrigerator of the class described, the combination with a receptacle having oppositely-disposed openings, of bushings located in the openings, a tube passing through the receptacle and fitting in the bushings, one end of said tube being provided on its eX- terior face with anannular ange, the opposite end having internal screw-threads, packing interposed between the flange and bushing, a cap located over the end of the tube and detachably secured to said. flange, a head screwed into the threaded en d of the tube and provided with an exterior annular iiange, packing interposed between this latter flange and the adjacent bushing, and a valved vent located in said head.

In testimony that I claim the foregoing as my own I have hereto affixed lny signature in the presence of two witnesses.

ALEXANDER B. KOKERNOT.

Vitnesses:

FELIX J. DREYFOUS, ALBERT GUILBAULT. 

